Arp 220
Arp 220 is a deep-sky object in the constellation Serpens.
Merging galaxies, nearest ultraluminous infrared galaxy
Facts
| Constellation | Serpens |
|---|---|
| Position (J2000) | 15h 34m 57s, +23° 30′ |
| Filter | No filter (It shines in starlight of every colour, so a nebula filter would only dim it; a dark sky helps more.) |
When and how to see it
Arp 220 is highest in the sky at midnight in May. From India (about 20° N) it climbs to about 86° above the horizon; from 50° N, to about 64°.
Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.
For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.
More in Serpens
Everything in Serpens · All 88 constellations · All sky objects
Data: · Data sources & credits